Excavating apparatus



P. E. DUTCHER.

EXCAVATING APPARATUS.

APPLICATION FILED Nov.2'a, |919.

mama July 5, @2L

4 SHEETS-SHEET l.

MWI/29mm P. E. DUTCHER. ExcAvAnNG APPARATUS.

APPLICATION FILED NOV-28. 1919- '1938,91 3 Patented July 5, 1921.,

4 SHEETS-SHEET 2.

P. E. DUTCHER.

EXCAVATING APPARATUS.

APPLmAIoN FILED N0v.28,1919.

LBSS l 3, Patented July 59 192k 4 SHEETS-SHEET 3.

P. E. DUTCHER.

EXCAVATING APPARATUS.

APPLICATION FELED NOV. 28, 19l9.

Patented July 5, 192i.

4 SHEETS-SHEET 4.

V f V EXCAVATING 1,383,913. Specification of To all whom t may concern:v

' Be it known that l, PIERPONT E. DUTGHER, a citizen of the UnitedStates, and resident of Upper Montclair, in the county of Essex andState of New Jersey, have invented a new and useful Improvement inExcavatingy Apparatus, of which the following is a speciiication.

. This invention relates to an excavating apparatus and has for itsobject t0 provide an apparatus having a bucket which may be controlledand operated by meansy of lines manipulated from'one side of the placedesired vto be excavatedV and between'predetermined points.

Another object is to provide means operated at the sideof the excavationfor con- -trollingthe position andV movement of the bucket.

A still further obj ect is to provide certain improvements in the form,construction and arrangement of the parts, whereby the above named andother objects may be effectively attained.

A Vpractical embodiment of my invention is represented in theaccompanying drawinO-s, in whichy tl1`igure 1 represents in plan a viewof my improved apparatus showing the'bucket, the lines attached thereto,the meansV by which the lines are controlled and operated and the meansfor supporting and guiding the lines and bucket.

Fig.Y 2 represents in side elevation, on an enlarged scale, a bucket,its lines and mech anism carried by the bucket in the position it willassumeV while being dragged with its load, also-showing in dottedoutlines, the position the mechanism will assume when the bucket isbeing hauled back.

Fig. 3 represents a longitudinal central section of the bucket, with itslines and mechanism .in a position for digging.

Fig. 4 represents a side elevation of the bucket in the position it willassume when dumping. y

Fig. 5 represents a plan view, on a still larger scale, of the bucketactuating mechanism, and a portion of the lines connected thereto;

Fig. 6 represents a side elevation ofthe same. Y

Fig. 7 represents a similar view with the parts in another position."

Fig. 8 represents a similar view with the partsin still anotherposition.

APPARATUS.

Letters Patent. Y Patented July 5, 1921.

Application filed November 28, 1919. Serial No. 341,035.

Fig. 9 represents a vertical section taken in the plane of the lineIX--IX of Fig. *7, looking in the direction of the arrows, and

Fig. 10 represents a vertical section taken in the plane of the line X-Xof Fig. 8', looking in thedirection of the arrows. i

To set up the apparatus at the place to be excavated, I provideanchorages denoted by 1, 2 at one side and an engine 3 having twowinding drums 4, 5 at the other side of the proposed excavation. Theengine 3 may be of any well known and approved typehavingmeans by whichthe two drums may bef`fcontrolled and operated. Between the anchorages1, 2 there is stretched'a line 6 upon which a guide pulley block 7 issupported and Varranged to travel. This pulley block 7 is held in itsposition on the line 6 by means of afrope 8, one end of which ispermanently attached at 9 to the pulley block, and the free endremovably secured to the anchorage 2.

A bucket 10 is provided with a drag line 11 and a haul-back line 12. Thedrag line 11 is arranged to be carried forwardly and wound directly onthe drumk 4 of thev engine, while the haul-back line 12 is carriedrearwardly through the pulley kblock 7, pulley 13 on the anchorage 1 andthence forwardly through supporting pulleys 14 mounted on poles15andaround a guide 16 to thedrum' 5. It will, of course, be understoodthat the drums 4, 5 may be so connected that they may be driven eithertogether or separately, so that one Vline may be tightened and the otherslackened or both tightened or slacl.- ened as theV case may require.

The drag line 11 is connected with a digging bail 17, the ends of whichare secured to ears 18 on the bucket. The haul-back line 12 is connectedto the bucket by a compensating line 19, one endof which is permanentlyvsecured to the bucket at 20 and the other end developed into a bail 21,the ends of which are fastened to the front end of the bucket at 22.rThis bail 21 is provided with a spreader 23 to prevent it from chafingon the bucket.Y The compensating line 19 passes from the bail 21 arounda pulley 24 in the end vof the haul back-line 12, forwardly to a pulley25 carried by a bracket 26 extending rearwardly from an actuatingmechanism, to be hereinafter described, thence rearwardly and secured tothe bucket at 20.

The actuating mechanism comprises a carriage 28, a pair of latches 29fixed on a 36 ofthe beam'.

pin 3C, journaled in the carriage and connected by a bridge 31 which issecured'to the latches by screwsj 32. The latches are ar-V ranged uponopposite sides of Ythe carriage and .normally rest in recesses 33 in thesides of the carriage. i w Y Av curved Ibeam 34 is arranged on thebucket in position toV form vaV track upon'V which the carriage 28 isheld in slidable en- 'agement by means of inwardly disposed ngers 35whichv engage the upper flanges Stops 37 are-xed upon-opposite sides ofi the I-beam 34 so as to `be engagedV by thev Y lifted out of thepath ofthe stops-37 byy means of a cam 38 mounted on a shaft-39l latches29-when at rest in the recesses;33,as shownin Figs. 3, 7 and 9.Thelatches are journaledin the carriage 28, which shaft and cam` Varearranged to be rotated by aY trigger 40.--pivotedf 'on--abracket 41 fast'on the I-l beam, .which trigger is adapted-to operai1 tively engageeach tooth 4210i a stai' whe/ei"y 43 pinned on one end of theshaft'f39', when the` carriage28 'movesto the left, Fig'.- 8. As i theshaft 139 with its 'cani 38 is rotated, the cam willibe vcaused to passthrougha` hole 44 in the carriagey and engage the bridge 31 andsozactuate the latches. Thete'eth on the star vwheel are soAV disposedthat each time the trigger moves a tooth, the. shaft 39Y will be rotateda quarter of aV revolution, and the shape `oit the cam isfsuch thatthe-latches will be raised and lowered'alternately with each movementofthe" carriage in the same direction or, in other words,will beraisedonveaehsecond'movement of the'carriage to '1 the left, Fig; 8. When thecarriage 28` moves pivot so as to permit thef carriage to pass,

vto the right, Figs. 2 and"3,the,star wheel will strikev Vthe triggervand swing it on its the weighted end45 on thel trigger serving riage. f

toreturnit toits nonnalposition.' i

The carriage 28 is controlled and operated hauled back to a place whereit is desired to curved I- beam 'isV shown in dotted lines iny start theexcavation. In hauling back the bucket, the engine is caused to wind theline 12 on the drum 5 andthe drum 4 permitted tounwind, which leaves theline 11' slack. The tensionon the line 12, to haul the bucket rearwardlyis imparted through. the pulley 24. to the compensating line 19, pulley25v of the 'carriage'28and the bail 21. The position the xcarriage 28will assume onk the Fig. 2. When 'the bucket has been hauled back to thedesiredl place and is ready to be brought toa digging position, the drum4is rotatedto wind the line 11,'while the drum Y 5 is allowedto unwindto slacken the line 12.

In tightening the line '11, the connection 46 will cause the carriage 28to travel forwardly on the track, in which movement,

one of the teeth 42 of the star wheel43 will engage the trigger'40,'which in turn will rock the shaft 39 so that the cam 38. willkallow the latches'torest'inthe Vrecesses 33 of the carriage, therebyplacing the `latches position to be operativelyv engagedjby the stops37, andhold the carriagein position on thetrack. Asi thev .tension onthe. drag line 11,' digging bail 17 and connection 46, is" continued,and the haul-backV line 12 slackened, the bucket*k will be .causedtotilt Y. forwardly tothe diggingfposition', shown in .Y

Fig. 3, in which position theline 11, digging S5Y l bail 17 andconnection 4,6Lhol'dthe bucket throughout the digging ',of'peration."vr,When the digging 'operation has" been completed andit isfdesired tohaul the Acontents of; the i Y bucket toward ythe sideof theexcavatiomjthe drag line 11l is slackened andthe hau'lf-bia@,kr` line 12tightened'i'suiiiciently 'to drawwthe,y

carriagerearwardly on' the track yso thatth'e star wheel 43 will againpass overtrigger140,-` whereuponthe-drag linefll'istightened and the 'fhaul-backv line 12 Yslackened so' that the carriagejwill returniover.the trigger 40 and seti the cam 38 so thatl kthe latches will :be

lifted toV clear the .stops 37,V andV the carriageY l allowed Vtovassume "a position onfthe track, as.. clearly shown in 'F1g.f2."- Inthis position,-

the load maybe'dragged to the'side of the excavation and there dumped.To dump the contents ofthe bucket, 'the :line 11 is 'pel-V mitted to'vslackenand thedruin v5 isrotated v to wind the line 12 thereon,fthusslidingthe carriage rearwardly until it has just passed the crest ofthe'I-beam 34. ith. the partsy in this position, tension is exerted onthe line Y 11and the. connection 46 tips the bucketA up into dumpingpositions. As' the"bucket starts to tip over its ydigging edge', Atheline 12 Ais allowedV to slip a little by sli htlycreiio i leasing thebrake on thedrum 5. f fterthe y contents ofV the bucket'have beendumped, the -line v11 may be slackened and the bucket allowed to return,by gravity, tothe haulback position with Vthe carriage in the positionshown in dotted lines in i bucket may be hauled back by the line. 12 andthe cycle of yoperations repeated as above-described.. Y

fig. awhenithe It. is to be emphasized. thatl the advan-V tagesVobtained by this apparatus. are" distinctive in that the bucket usedpicks up its Y' Y load andcarries it to a place tobe dumped 3.

that the bucketis not suspended or carried;-

ythat the manipulation. of the bucket is,con

trolledand operatedentirelyV from theside of the excavation, by'alternating'tensionon theV diggingV and haul-back linesv without placingtension on the opposing line, thereby materially saving Wear and tear onthe apparatus, due to opposite forces being applied to the lines; thatthe bucket Will assume digging, carrying and haul-back posltions withoperating tension applied to one line at a time; and that the dumpingposition only is assumed With the tension applied to both lines.

It is obvious that various changes may be resorted to in the form,construction and arrangement of the several parts and in the method ofoperation Without departing from the spirit and scope of my invention;and hence I do not Wish to be limited to the details herein shown anddescribed except as they may be set forth in the claims.

What I claim is:

1. An excavating apparatus including, a bucket adapted to operate on theground, a line circuit secured to said bucket, means for actuating theline circuit to cause the bucket to dig and then carry its load, andmeans for causing the bucket to maintain a regular digging angle withtension on the drag line only irrespective oi the amount of load in thebucket.

2. An excavating apparatus including, a bucket adapted to operate on theground, a line circuit secured to said bucket, means for actuating theline circuit to cause the bucket to dig, carry its load and to dump theload, and means for causing the bucket to maintain a regular diggingangle With tension on the drag line onlyv irrespective of the amount ofload in the bucket.

3. VAn excavating apparatus-including, a bucket adapted to operate onthe ground, a line circuit secured t0 said bucket, means for actuatingthe line circuit to cause the bucket to dig, carry its load, dump theload, and to haul back, and means for causing the bucket to maintain aregular digging angle with tension on the drag line only irrespective ofthe amount of load in the bucket.

4. An excavating apparatus including, a bucket having a drag line and ahaul-back line, means slidably mounted on said bucket and connectingsaid drag and haul-back lines, and means for operating the drag andhaul-back lines to move said slidable means for controlling the positionand movement of the bucket.

5. An excavating apparatus including, a bucket having a drag line and ahaul-back line, means slidably mounted on said bucket and connectingsaid drag and haul-back lines, means fast on the bucket adapted toengage said slidable means for holding it in a fixed relative position,and means for operating the drag and haul-back lines to move saidslidable means for controlling the position and movement of the bucket.

. 6. An excavating apparatus including, a

bucket having a drag line and a haul-back line, means slidably mountedon said bucket and connecting said drag and haul-back lines, a stop onthe bucket, a latch carried by said slidable means in position to engagesaid stop to hold the means in a fixed relative position, and means foroperating the drag and haul-back lines to move the slidable means forcontrolling the position and movement of the bucket.

7. An excavating apparatus including, a bucket having a drag line and ahaul-back line, means slidably mounted on said bucket and connectingsaid drag andI haul-back lines, a stop on the bucket, a latch carried bysaid slidable means in position to engage said stop to hold the means ina fixed relative position, means for moving said latch to throw it outof contact With the stop, and means for operating the drag and haul-backlines to move the slidable means for controlling the position andmovement of the bucket.

8. An excavating apparatus including, a bucket having a drag line and ahaul-back line, means slidably mounted on said bucket and connectingsaid drag and haul-back lines, a stop on the bucket, a latch carried bysaid slidable means in position to engage said stop to hold the means ina fixed relative position, means Jfor moving said latch to throW it outof contact With the stop,

means on the bucket adapted to engage said.y

latch moving means for actuating it, and

means for operating the drag and haulback lines to move the slidablemeans for controlling the position and movement of the bucket.

9. An excavating apparatus including, a bucket having a bottom, a dragand a haulback line connected to said bucket, and means for operatingsaid lines so as to cause the bucket to assume a digging or loadcarrying position While permitting slackness in the haul-back line.

10. An excavating apparatus including, a bucket having a bottom, a dragand a haulback line connected to said bucket, and means for operatingsaid lines so as to cause the bucket to assume digging, carrying, andhaul-back positions with tension on only one of said lines at a time.

11. An excavating apparatus including, a bucket having a bottom, a dragand a haulback line connected to said bucket, and means for operatingsaid lines so as to cause the bucket to assume digging, carrying,haulback positions with tension on only one of said lines at a time, andto assume a haulpack position Without tension on the drag In testimonythat I claim the :foregoing as my invention I have signed my name thistWenty-ifth day of November 1919.

PIERPONT E. DUTCHER.

